Update from https://crrev.com/304121

gpu/command_buffer/cmd_buffer_functions.txt

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is read by build_gles2_cmd_buffer.py to generate commands.
 
 GL_APICALL void         GL_APIENTRY glActiveTexture (GLenum texture);
 GL_APICALL void         GL_APIENTRY glAttachShader (GLidProgram program, GLidShader shader);
 GL_APICALL void         GL_APIENTRY glBindAttribLocation (GLidProgram program, GLuint index, const char* name);
 GL_APICALL void         GL_APIENTRY glBindBuffer (GLenumBufferTarget target, GLidBindBuffer buffer);
@@ skipping 165 matching lines @@
 GL_APICALL void*        GL_APIENTRY glMapBufferCHROMIUM (GLuint target, GLenum access);
 GL_APICALL GLboolean    GL_APIENTRY glUnmapBufferCHROMIUM (GLuint target);
 GL_APICALL void*        GL_APIENTRY glMapBufferSubDataCHROMIUM (GLuint target, GLintptrNotNegative offset, GLsizeiptr size, GLenum access);
 GL_APICALL void         GL_APIENTRY glUnmapBufferSubDataCHROMIUM (const void* mem);
 GL_APICALL void*        GL_APIENTRY glMapTexSubImage2DCHROMIUM (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLenum access);
 GL_APICALL void         GL_APIENTRY glUnmapTexSubImage2DCHROMIUM (const void* mem);
 GL_APICALL void         GL_APIENTRY glResizeCHROMIUM (GLuint width, GLuint height, GLfloat scale_factor);
 GL_APICALL const GLchar* GL_APIENTRY glGetRequestableExtensionsCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glRequestExtensionCHROMIUM (const char* extension);
 GL_APICALL void         GL_APIENTRY glRateLimitOffscreenContextCHROMIUM (void);
-GL_APICALL void         GL_APIENTRY glGetMultipleIntegervCHROMIUM (const GLenum* pnames, GLuint count, GLint* results, GLsizeiptr size);
 GL_APICALL void         GL_APIENTRY glGetProgramInfoCHROMIUM (GLidProgram program, GLsizeiNotNegative bufsize, GLsizei* size, void* info);
 GL_APICALL GLuint       GL_APIENTRY glCreateStreamTextureCHROMIUM (GLuint texture);
 GL_APICALL GLuint       GL_APIENTRY glCreateImageCHROMIUM (ClientBuffer buffer, GLsizei width, GLsizei height, GLenum internalformat);
 GL_APICALL void         GL_APIENTRY glDestroyImageCHROMIUM (GLuint image_id);
 GL_APICALL GLuint       GL_APIENTRY glCreateGpuMemoryBufferImageCHROMIUM (GLsizei width, GLsizei height, GLenum internalformat, GLenum usage);
 GL_APICALL void         GL_APIENTRY glGetTranslatedShaderSourceANGLE (GLidShader shader, GLsizeiNotNegative bufsize, GLsizeiOptional* length, char* source);
 GL_APICALL void         GL_APIENTRY glPostSubBufferCHROMIUM (GLint x, GLint y, GLint width, GLint height);
 GL_APICALL void         GL_APIENTRY glTexImageIOSurface2DCHROMIUM (GLenumTextureBindTarget target, GLsizei width, GLsizei height, GLuint ioSurfaceId, GLuint plane);
 GL_APICALL void         GL_APIENTRY glCopyTextureCHROMIUM (GLenum target, GLenum source_id, GLenum dest_id, GLint level, GLintTextureInternalFormat internalformat, GLenumPixelType dest_type);
 GL_APICALL void         GL_APIENTRY glDrawArraysInstancedANGLE (GLenumDrawMode mode, GLint first, GLsizei count, GLsizei primcount);
 GL_APICALL void         GL_APIENTRY glDrawElementsInstancedANGLE (GLenumDrawMode mode, GLsizei count, GLenumIndexType type, const void* indices, GLsizei primcount);
 GL_APICALL void         GL_APIENTRY glVertexAttribDivisorANGLE (GLuint index, GLuint divisor);
 GL_APICALL void         GL_APIENTRY glGenMailboxCHROMIUM (GLbyte* mailbox);
 GL_APICALL void         GL_APIENTRY glProduceTextureCHROMIUM (GLenumTextureBindTarget target, const GLbyte* mailbox);
 GL_APICALL void         GL_APIENTRY glProduceTextureDirectCHROMIUM (GLidBindTexture texture, GLenumTextureBindTarget target, const GLbyte* mailbox);
 GL_APICALL void         GL_APIENTRY glConsumeTextureCHROMIUM (GLenumTextureBindTarget target, const GLbyte* mailbox);
 GL_APICALL GLuint       GL_APIENTRY glCreateAndConsumeTextureCHROMIUM (GLenumTextureBindTarget target, const GLbyte* mailbox);
 GL_APICALL void         GL_APIENTRY glBindUniformLocationCHROMIUM (GLidProgram program, GLint location, const char* name);
+GL_APICALL void         GL_APIENTRY glGenValuebuffersCHROMIUM (GLsizeiNotNegative n, GLuint* buffers);
+GL_APICALL void         GL_APIENTRY glDeleteValuebuffersCHROMIUM (GLsizeiNotNegative n, const GLuint* valuebuffers);
+GL_APICALL GLboolean    GL_APIENTRY glIsValuebufferCHROMIUM (GLidBindValuebuffer valuebuffer);
+GL_APICALL void         GL_APIENTRY glBindValuebufferCHROMIUM (GLenumValueBufferTarget target, GLidBindValuebuffer valuebuffer);
+GL_APICALL void         GL_APIENTRY glSubscribeValueCHROMIUM (GLenumValueBufferTarget target, GLenumSubscriptionTarget subscription);
+GL_APICALL void         GL_APIENTRY glPopulateSubscribedValuesCHROMIUM (GLenumValueBufferTarget target);
+GL_APICALL void         GL_APIENTRY glUniformValuebufferCHROMIUM (GLintUniformLocation location, GLenumValueBufferTarget target, GLenumSubscriptionTarget subscription);
 GL_APICALL void         GL_APIENTRY glBindTexImage2DCHROMIUM (GLenumTextureBindTarget target, GLint imageId);
 GL_APICALL void         GL_APIENTRY glReleaseTexImage2DCHROMIUM (GLenumTextureBindTarget target, GLint imageId);
 GL_APICALL void         GL_APIENTRY glTraceBeginCHROMIUM (const char* name);
 GL_APICALL void         GL_APIENTRY glTraceEndCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glAsyncTexSubImage2DCHROMIUM (GLenumTextureTarget target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenumTextureFormat format, GLenumPixelType type, const void* data);
 GL_APICALL void         GL_APIENTRY glAsyncTexImage2DCHROMIUM (GLenumTextureTarget target, GLint level, GLenumTextureInternalFormat internalformat, GLsizei width, GLsizei height, GLintTextureBorder border, GLenumTextureFormat format, GLenumPixelType type, const void* pixels);
 GL_APICALL void         GL_APIENTRY glWaitAsyncTexImage2DCHROMIUM (GLenumTextureTarget target);
 GL_APICALL void         GL_APIENTRY glWaitAllAsyncTexImage2DCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glDiscardFramebufferEXT (GLenum target, GLsizei count, const GLenum* attachments);
 GL_APICALL void         GL_APIENTRY glLoseContextCHROMIUM (GLenumResetStatus current, GLenumResetStatus other);
 GL_APICALL GLuint       GL_APIENTRY glInsertSyncPointCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glWaitSyncPointCHROMIUM (GLuint sync_point);
 GL_APICALL void         GL_APIENTRY glDrawBuffersEXT (GLsizei count, const GLenum* bufs);
 GL_APICALL void         GL_APIENTRY glDiscardBackbufferCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glScheduleOverlayPlaneCHROMIUM (GLint plane_z_order, GLenum plane_transform, GLuint overlay_texture_id, GLint bounds_x, GLint bounds_y, GLint bounds_width, GLint bounds_height, GLfloat uv_x, GLfloat uv_y, GLfloat uv_width, GLfloat uv_height);
 
 // Extension CHROMIUM_path_rendering.
 GL_APICALL void         GL_APIENTRY glMatrixLoadfCHROMIUM (GLenumMatrixMode matrixMode, const GLfloat* m);
 GL_APICALL void         GL_APIENTRY glMatrixLoadIdentityCHROMIUM (GLenumMatrixMode matrixMode);
 
 // Extension KHR_blend_equation_advanced
 GL_APICALL void GL_APIENTRY glBlendBarrierKHR (void);